camry 1997 acceleration problem

[aks]

Hi all,

I have a Toyota Camry 1997 model which I bought in 2008@89000 miles.
Until now it used to run very nice with no noise and super smooth acceleration.
In between, I had to change the serpentine belts about 1.5 yrs ago. Other than
the serpentine belt change, there has been no hiccups in performance and the
car used to run super good. Before I bought it, I made sure that the timing belt
was changed around 60000 miles.

However, about 3 weeks ago, I went for a regular oil change @JiffyLube's (which I
do regularly every 3 months or 3000 miles, whichever is less) and they did a cursory
check on my car and said everything is in good shape. However, after the oil change,
my car is not accelerating properly and the rpm reading easily reaches 3000 for
minor accelerations from (25 to 30)/(30 to 35)/(35 to 40) mph (previously it would
almost never go past 2800/3000 unless driving on a highway). It also makes a very slight
humming or buzzing noise. Earlier, it was totally noiseless (something I was extremely
proud of ).

Since, I am a student and wouldn't want to spend money unless absolutely necessary, I
gave my car to Slaugh's Car Care@SLC, UT for a free diagnostic check (a more involved one would have cost me $50 or more). They did a complete check and said everything
as fine.

However, I still think my car has some problems which is being ignored. This is taking the
peace out of mind. I love my car and would want to drive it as noiselessly and smoothly
as before.

I would greatly appreciate any suggestions/feedbacks.

Thanks for reading
Cheers,
Aks

[Mister_Perkins]

hmmm .. Well Hopefully they didn't use SAE 30, which Jiffy Lube has been noted to use.

It shouldn't affect the acceleration though. Have you been changing your transmission fluid / oil at the same intervals?

If you haven't changed your transmission fluid in a while, you may want to look into changing it out.

Could be related to the transmission fluid starting to break down and taking more acceleration to engage the shift solenoids.

[Bobelvago]

Can I ask why Jiffylube? They charge like $35 versus $16 at a gas station.

[aks]

@Mister_Perkins:
Yes, you might be right. I had been changing my transmission fluid at regular interval of 3 months until last time when I was out of country for quite some time (and hence the car was sitting idle during that time) which made the interval about 6 months.

I don't what they used but if that is what causing this, then I might go over and talk to them? Any suggestions on what to tell them to do or to use ?


@Bobelvago:
I like their service and usually they have a bunch of discount for students. Also, every third time they give a 50% discount which amortizes to cost to roughly around $20. Hence, not a big difference as compared to $16 of a gas station